TaxNo: 2684Richardsonites mapesi
| Suborder: |
Goniatitina
|
| Superfamily: |
Gastrioceratoidea
|
| Family: |
Glaphyritidae
|
| Subfamily: |
Glaphyritinae
|
| Genus: |
Richardsonites
|
| Species: | mapesi |
| Qualifier: | ss |
| Author: |
Saunders 1973,p.34
|
| Lower Boundary: |
UAR Upper Pitkin--Imo Formation, 321 million years
|
| Upper Boundary: |
UAR Imo Formation top, 318.1 million years
|